I think there's more to this than having interesting experiences and skills.

Being interesting is largely about being able to present things in an interesting manner. You could have lived an amazing life yet still bore people to tears telling them about it.

"then the high priest threw me in the snake pit, there were a lot of snakes in the snake pit"

As such, a useful skill to learn is how to tell somewhat mundane stories in an interesting or funny way.

I put some effort into practicing speaking more like some stage performers and comedians who tell stories and got good results.

Some people can make a trip to the shops sound interesting, learn from those people.